Depth of cure measurements were performed at NIOM according to ISO 4049. Test materials were Tetric EvoCeram (Ivoclar Vivadent) and Filtek Z250 (3M ESPE) colour A3. These composites were cured with 30 LED lamps using various curing methods and times. The data were collected from 2005 to 2011.

Adhesion between the restoration and the tooth has been a subject of considerable interest both for scientists and dental practitioner. The aspect of retention needed for survival of dental amalgam restorations has been partly omitted by the introduction of adhesive technology.

LED (Light Emitting Diodes) technology for curing dental polymeric materials, such as composites, has developed strongly in recent years and a large number of LEDs are currently on the market. (Report in Swedish).